If you are looking for a free alternative for basic editing, you might consider (an open-source plugin for Inkscape), but for professional Dahao machine operations, EMCAD remains the gold standard.
You won’t be able to access the latest "upd" patches, meaning your software may not work with newer Windows versions. Key Features of the Latest EMCAD Version dahao emcad embroidery software free upd download
If you need an update or lost your software, contact the manufacturer of your embroidery machine. They are obligated to provide the compatible software version for your hardware. If you are looking for a free alternative